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  • iMessage "Denial of Service" Prank Crashes iOS Messages App


    According to the folks over at The Next Web, a recent prank played on a group of iOS developers seems to have revealed a limitation in how Apple handles data sent through its iMessage service, which in some cases can crash the app if the incoming message is too long or contains overly complex characters.

    Popular developers such as ih8sn0w and Grant Paul were among those targeted by a specific type of denial of service (DoS) attack that overwhelmed their Messages inboxes with a load of automatically-generated transmissions. The two developers believe the messages that were sent to them via the Messages app on OS X with a simple AppleScript affecting the barrage that prompts a victim to constantly clear notifications and text. According to Paul:

    Whatís happening is a simple flood: Apple doesnít seem to limit how fast messages can be sent, so the attacker is able to send thousands of messages very quickly.
    After the incident, ih8sn0w mocked up a proof-of-concept AppleScript to demonstrate how such an attack may work. If Apple doesnít limit the influx of messages, a userís app will quickly become filled with piles and piles of spam.

    The real issue that arises with the attack is with the long and/or complex messages that are received. Depending on what is sent, Messages on iOS can crash because it canít process and display the massive amount of data correctly. According to the developers, the app will force itself to close and wonít re-open because it canít properly render the text. As of right now, there isnít any surefire solution to remedy the crashed Messages app.

    The publication suggests "playing around with sending a regular message, then locking the phone and activating the message notification until youíre able to time it right to delete the message thread thatís causing the problem. One thing to note is that if the attacker gets a hold of a userís iMessage handle, the only option may be to disable the account temporarily. If a userís phone number is compromised, iMessage as a whole may have to be turned off.

    The identity of the attack behind the attacks remains unknown at the moment but the messages appear to have originated from a Twitter account used to sell UDIDs and provisioning profiles. Disposable email accounts were being used to send the spam, making it difficult to simply block the culprit as they can simply open another and continue to bombard you with messages.

    Apple hasnít responded to the issue just yet but weíre hoping they will soon.

    Source: The Next Web via AppleInsider
    This article was originally published in forum thread: iMessage "Denial of Service" Prank Crashes iOS Messages App started by Akshay Masand View original post
    Comments 27 Comments
    1. mrrom92's Avatar
      mrrom92 -
      Quote Originally Posted by BIG BUFF View Post
      Just today i sent out 2 iMessage pictures to my wife she never got it and it says its been deliver on my side.


      Quote Originally Posted by zplit View Post
      I have this problem for about a week or two.


      I've been having this problem ever since evasion dropped and it's bugging the hell out of me. I remember having this problem in the past on my 4 or 4s also but I don't remember what I did to fix it. I think it might've been some tweak but I've already gone through fisaing everything to try to get it to work again.
    1. steve-z17's Avatar
      steve-z17 -
      Quote Originally Posted by tankz504 View Post
      What's it called?
      It's called SMSFlooder!
    1. *T*'s Avatar
      *T* -
      Quote Originally Posted by mustard05 View Post
      I was apart of a huge iMessage group chat consisting of about 6 people. Earlier this week, when everybody happened to be off from work, everyone started iMessaging like crazy and my phone actually crashed. I actually thought to myself "I guess iMessage cant handle that much info coming through at once. Just a coincidence i suppose.
      Consider yourself lucky: I got stuck in a group chat with 54 high school freshmen. Thank god for unlimited texting
    1. iPapeto's Avatar
      iPapeto -
      Tri iBlacklist !!!
    1. mustard05's Avatar
      mustard05 -
      Quote Originally Posted by *T* View Post
      Consider yourself lucky: I got stuck in a group chat with 54 high school freshmen. Thank god for unlimited texting
      That would drive me Insain. Somebody should make a tweak that lets you control group chat settings. I would love to turn off notification and alerts for specific group chats.
    1. steve-z17's Avatar
      steve-z17 -
      Quote Originally Posted by mustard05 View Post
      That would drive me Insain. Somebody should make a tweak that lets you control group chat settings. I would love to turn off notification and alerts for specific group chats.
      I agree!
    1. towboattrash34's Avatar
      towboattrash34 -
      Just old school kiddie yahoo messenger tricks.